Anti-freezing structure of HDPE plastic steel winding drain pipe

Abstract

The utility model discloses an HDPE plastic steel winding drain pipe anti-freezing structure which comprises drain pipe bodies and a connecting pipe body, the pair of drain pipe bodies are tightly connected through the connecting pipe body, installation end pipes are fixedly installed at the two ends of the drain pipe bodies, an annular heating plate is embedded in the center of the connecting pipe body, and a heat preservation pipe is embedded in the center of the connecting pipe body. The heat preservation pipe is fixedly installed on the outer side wall of the annular heating plate, first annular heat conduction blocks are fixedly embedded in the two ends of the connecting pipe body, and fixed end pipes are integrally arranged at the two ends of the connecting pipe body. Through the arrangement of the annular heating plate, the first annular heat conduction block and the second annular heat conduction block, heat generated by the annular heating plate is transmitted through the first annular heat conduction block and the second annular heat conduction block, the temperature of the connecting position between the drainage pipe bodies is guaranteed, and the pipeline connecting position is prevented from being frozen; by arranging the fastening assembly, the mounting end pipe and the fixed end pipe are connected in a fastening mode.

Description

Technical Field

[0001] The utility model relates to the technical field of drainage pipe antifreeze, in particular to a HDPE plastic-steel winding drainage pipe antifreeze structure. Background Art

[0002] HDPE plastic-steel wrapped drainage pipe is made of high-density polyethylene and steel belts as raw materials and is formed by hot extrusion winding. In addition to the characteristics of good corrosion resistance, smooth inner wall and small flow resistance of ordinary plastic pipes, it also adopts a special steel belt "V" shaped structure, which has excellent high rigidity, high strength and good toughness, as well as light weight, strong impact resistance and not easy to break. As a new type of plastic pipe, steel belt reinforced polyethylene wrapped drainage pipe is very suitable for drainage pipeline engineering fields such as rainwater, sewage and wastewater discharge systems due to its high strength.

[0003] From the perspective of air tightness, the interface is often the weak link in the pipe connection. There may be tiny gaps or incomplete sealing. These gaps can easily allow cold air to enter the pipe, making the temperature of this part lower, thereby increasing the risk of freezing. From the perspective of heat loss, compared with the straight section of the pipe, the surface area of ​​the interface is relatively large, and heat is more easily dissipated into the environment through these areas. From the perspective of water retention, due to changes in structure and water flow direction, water retention may occur at the interface. Still water is more likely to freeze than flowing water. Considering multiple reasons, the interface of the drainage pipe is more prone to water freezing. Therefore, it is necessary to propose an antifreeze structure for HDPE plastic steel wrapped drainage pipes. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a HDPE plastic-steel winding drainage pipe antifreeze structure.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A HDPE plastic-steel wrapped drainage pipe antifreeze structure comprises a drainage pipe body and a connecting pipe body, a pair of the drainage pipe bodies are tightly connected via the connecting pipe body, mounting end pipes are fixedly installed at both ends of the drainage pipe body, an annular heating plate is embedded in the center of the connecting pipe body, an insulation pipe is embedded in the center of the connecting pipe body, the insulation pipe is fixedly installed on the outer wall of the annular heating plate, a first annular heat-conducting block is fixedly embedded at both ends of the connecting pipe body, fixed end pipes are integrally arranged at both ends of the connecting pipe body, and a fastening assembly is arranged between the mounting end pipe and the fixed end pipe.

[0007] Preferably, the outer diameter of the installation end pipe is consistent with the outer diameters of the drainage pipe body and the connecting pipe body, and the inner diameter of the installation end pipe is consistent with the outer diameter of the fixed end pipe;

[0008] It is used to ensure that the external forces acting on the connection of the pipeline and the straight section of the pipeline are consistent during pipeline installation, thus ensuring the safety of the device.

[0009] Preferably, a second annular heat-conducting block is embedded in the end of the installation end pipe away from the drain pipe body, the inner and outer diameters of the first annular heat-conducting block and the second annular heat-conducting block are consistent, and the adjacent side walls of the first annular heat-conducting block and the second annular heat-conducting block are in contact with each other;

[0010] Used to ensure temperature transmission at the pipe belt interface, the cooperation of the first annular heat-conducting block and the second annular heat-conducting block enables the heat generated by the annular heating plate to be quickly transferred through the first annular heat-conducting block and the second annular heat-conducting block, thereby ensuring the temperature of the connection between the drainage pipe bodies.

[0011] Preferably, the fastening assembly comprises sliding grooves evenly and equidistantly arranged on the fixed end tube, a threaded seat is movably arranged in the sliding groove, a strong spring is elastically connected between the bottom end of the sliding groove and the bottom end of the threaded seat, and the inner side wall of the threaded seat is provided with threads;

[0012] The mounting end tube is provided with a plurality of through holes evenly spaced apart, the through holes corresponding to the sliding grooves one by one, the outer wall of the mounting end tube is provided with a nut groove communicating with the through holes, and the inner wall of the mounting end tube is provided with a movable groove communicating with the through holes.

[0013] The outer diameter of the sliding groove is consistent with the outer diameter of the movable groove. A fastening bolt is installed in the inner thread of the through hole. The end of the fastening bolt is threadedly connected with the threaded seat. The nut of the fastening bolt is arranged in the nut groove.

[0014] It is used to fasten the installation end tube and the fixed end tube. The fixed end tube is inserted into the installation end tube. Under the action of the strong spring, the threaded seat is inserted into the movable groove. Then the fastening bolt is threadedly installed in the through hole, so that the end of the fastening bolt is threadedly connected with the threaded seat, and the thread of the fastening bolt is set in the nut groove.

[0015] The utility model has the following beneficial effects:

[0016] 1. By setting an annular heating plate, a first annular heat-conducting block and a second annular heat-conducting block, the heat generated by the annular heating plate is transferred through the first annular heat-conducting block and the second annular heat-conducting block to ensure the temperature of the connection between the drainage pipe bodies and avoid freezing of the pipe connection.

[0017] 2. By setting up the fastening assembly, the fixed end tube is inserted into the installation end tube. Under the action of the strong spring, the threaded seat is inserted into the movable groove, and then the fastening bolt is threadedly installed in the through hole, so that the end of the fastening bolt is threadedly connected with the threaded seat. At the same time, the thread of the fastening bolt is set in the nut groove, so that the installation end tube and the fixed end tube are tightly connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of a HDPE plastic-steel wrapped drainage pipe antifreeze structure proposed by the utility model;

[0019] Figure 2 A schematic diagram of the connection structure of a HDPE plastic-steel wrapped drainage pipe antifreeze structure proposed by the utility model;

[0020] Figure 3 This is a schematic diagram of the cross-sectional structure of the installation end pipe of the utility model;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the connecting pipe body of the utility model.

[0022] In the figure: 1. Drain pipe body; 2. Connecting pipe body; 3. Mounting end pipe; 31. Second annular heat-conducting block; 4. Annular heating plate; 5. Insulation pipe; 6. First annular heat-conducting block; 7. Fixed end pipe; 8. Fastening assembly; 81. Sliding groove; 82. Threaded seat; 83. Strong spring; 84. Through hole; 85. Nut groove; 86. Movable groove; 87. Fastening bolt. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0025] Reference Figure 1-4A HDPE plastic-steel wrapped drainage pipe antifreeze structure comprises a drainage pipe body 1 and a connecting pipe body 2. A pair of drainage pipe bodies 1 are tightly connected through the connecting pipe body 2. Installation end pipes 3 are fixedly installed at both ends of the drainage pipe body 1. An annular heating plate 4 is embedded in the center of the connecting pipe body 2. An insulation pipe 5 is embedded in the center of the connecting pipe body 2. The insulation pipe 5 is fixedly installed on the outer wall of the annular heating plate 4. First annular heat-conducting blocks 6 are fixedly embedded at both ends of the connecting pipe body 2. Fixed end pipes 7 are integrally arranged at both ends of the connecting pipe body 2. A fastening component 8 is arranged between the installation end pipe 3 and the fixed end pipe 7.

[0026] Insert the fixed end pipe 7 into the installation end pipe 3, and fasten the installation end pipe 3 and the fixed end pipe 7 together through the fastening assembly 8. The annular heating plate 4 heats the connection of the pipe, the insulation pipe 5 reduces the heat dissipation, and the first annular heat conductive block 6 conducts the heat better to avoid ice formation at the connection of the pipe.

[0027] The outer diameter of the installation end pipe 3 is consistent with the outer diameters of the drainage pipe body 1 and the connecting pipe body 2 , and the inner diameter of the installation end pipe 3 is consistent with the outer diameter of the fixed end pipe 7 .

[0028] A second annular heat conductive block 31 is embedded in the end of the installation end pipe 3 away from the drain pipe body 1. The inner and outer diameters of the first annular heat conductive block 6 and the second annular heat conductive block 31 are consistent, and the adjacent side walls of the first annular heat conductive block 6 and the second annular heat conductive block 31 are in contact.

[0029] The fastening assembly 8 includes a sliding groove 81 equidistantly and evenly arranged on the fixed end tube 7, a threaded seat 82 is movably arranged in the sliding groove 81, a strong spring 83 is elastically connected between the bottom end of the sliding groove 81 and the bottom end of the threaded seat 82, and the inner side wall of the threaded seat 82 is provided with threads.

[0030] A plurality of through holes 84 are evenly and equidistantly provided on the mounting end tube 3 , and the through holes 84 correspond one to one with the sliding grooves 81 . The outer wall of the mounting end tube 3 is provided with a nut groove 85 connected with the through holes 84 , and the inner wall of the mounting end tube 3 is provided with a movable groove 86 connected with the through holes 84 .

[0031] The outer diameter of the sliding groove 81 is consistent with the outer diameter of the movable groove 86 . A fastening bolt 87 is installed in the internal thread of the through hole 84 . The end of the fastening bolt 87 is threadedly connected to the threaded seat 82 , and the nut of the fastening bolt 87 is set in the nut groove 85 .

[0032] In the utility model, the fixed end pipe 7 is inserted into the mounting end pipe 3, and the threaded seat 82 is inserted into the movable groove 86 under the action of the strong spring 83, and then the fastening bolt 87 is threadedly installed in the through hole 84, so that the end of the fastening bolt 87 is threadedly connected with the threaded seat 82, and at the same time, the thread of the fastening bolt 87 is set in the nut groove 85, so that the mounting end pipe 3 and the fixed end pipe 7 are tightly connected, and the heat generated by the annular heating plate 4 is transmitted through the first annular heat conductive block 6 and the second annular heat conductive block 31 to ensure the temperature of the connection between the drainage pipe body 1, avoid freezing of the pipe connection, and the insulation pipe 5 reduces the dissipation of heat.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A HDPE plastic-steel wrapped drainage pipe antifreeze structure, comprising a drainage pipe body (1) and a connecting pipe body (2), Features: A pair of drainage pipe bodies (1) are tightly connected via a connecting pipe body (2); mounting end pipes (3) are fixedly installed at both ends of the drainage pipe body (1); an annular heating plate (4) is embedded in the center of the connecting pipe body (2); an insulation pipe (5) is embedded in the center of the connecting pipe body (2); the insulation pipe (5) is fixedly installed on the outer wall of the annular heating plate (4); first annular heat-conducting blocks (6) are fixedly embedded at both ends of the connecting pipe body (2); fixed end pipes (7) are integrally provided at both ends of the connecting pipe body (2); and a fastening assembly (8) is provided between the mounting end pipe (3) and the fixed end pipe (7).

2. The HDPE plastic-steel wrapped drainage pipe antifreeze structure according to claim 1, Features: The outer diameter of the installation end pipe (3) is consistent with the outer diameters of the drainage pipe body (1) and the connecting pipe body (2), and the inner diameter of the installation end pipe (3) is consistent with the outer diameter of the fixed end pipe (7).

3. The HDPE plastic-steel wrapped drainage pipe antifreeze structure according to claim 1, Features: A second annular heat-conducting block (31) is embedded in the end of the installation end pipe (3) away from the drainage pipe body (1); the inner and outer diameters of the first annular heat-conducting block (6) and the second annular heat-conducting block (31) are consistent, and the adjacent side walls of the first annular heat-conducting block (6) and the second annular heat-conducting block (31) are in contact with each other.

4. The HDPE plastic-steel wrapped drainage pipe antifreeze structure according to claim 1, Features: The fastening assembly (8) comprises a sliding groove (81) which is evenly and equidistantly arranged on the fixed end tube (7); a threaded seat (82) is movably arranged in the sliding groove (81); a strong spring (83) is elastically connected between the bottom end of the sliding groove (81) and the bottom end of the threaded seat (82); and a thread is arranged on the inner side wall of the threaded seat (82).

5. The HDPE plastic-steel wrapped drainage pipe antifreeze structure according to claim 4, Features: The mounting end tube (3) is provided with a plurality of through holes (84) at equal intervals, the through holes (84) corresponding to the sliding grooves (81) one by one, the outer wall of the mounting end tube (3) is provided with a nut groove (85) communicating with the through holes (84), and the inner wall of the mounting end tube (3) is provided with a movable groove (86) communicating with the through holes (84).

6. The HDPE plastic-steel wrapped drainage pipe antifreeze structure according to claim 5, Features: The outer diameter of the sliding groove (81) is consistent with the outer diameter of the movable groove (86); a fastening bolt (87) is installed in the internal thread of the through hole (84); the end of the fastening bolt (87) is threadedly connected to the threaded seat (82); and the nut of the fastening bolt (87) is arranged in the nut groove (85).

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